
In the US population, 30% of adults are obese and another 35% are overweight.
Obesity is defined in terms of body mass index(BMI) = weight in kg/(height in m)square.
BMI below 25 is considered normal;
25-30 is overweight and
greater than 30 is obese,
you can carry out this simple check yourself and now.
Pls do post a reply and tell me if you fall into the normal group.
Obesity is life threatning. It significantly increases the chances of developing type ii diabetes, heart attack, stroke, cancers of the colon, breast, prostate and endometrium.
Note that there are some homeostatic mechanisms that are normal body processes that help to keep calorie intake and energy expenditure in balance, these will include complex set of hormonal and neuronal signals but these all fail in obesity.
Consequently, there is great interest
in understanding how body mass and storage of fat are regulated.Obesity is the result of taking in more calories in the diet than are expended by the body's energy-consuming activities. There are 3 ways the body deals with dietary calories.
i, Convert excess calorie to fat and store it in adipose tissue
ii, burn excess fuel by extra exercise
iii, waste fuel by diverting it to heat production (thermogenesis) in uncoupled mitochondria.
If you're obese and can't lose pounds with a healthy diet and exercise, surgery might be an option for you. The surgery is usually for men who are at least 100 pounds overweight and women who are at least 80 pounds overweight. If you are somewhat less overweight, surgery still might be an option if you also have diabetes, heart disease or sleep apnea.
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Weight loss surgery limits the amount of food you can take in. Some operations also restrict the amount of food you can digest. Many people who have the surgery lose weight quickly. If you follow diet and exercise recommendations, you can keep most of the weight off. The surgery has risks and complications, however, including infections, hernias and blood clots.
If you are overweight, you are not alone. Sixty-six percent of adults in the U.S. are overweight or obese. Achieving a healthy weight can help you control your cholesterol, blood pressure and blood sugar. It might also help you prevent weight-related diseases, such as heart disease, diabetes, arthritis and some cancers.
Eating too much or not being physically active enough will make you overweight. To maintain your weight, the calories you eat must equal the energy you burn. To lose weight, you must use more calories than you eat. A weight-control strategy might include
- Choosing low-fat, low-calorie foods
- Eating smaller portions
- Drinking water instead of sugary drinks
- Being physically active
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